Nagios Core Upgrade

Ubuntu

Stop Service / Daemon

This command stops Nagios Core.

===== Ubuntu 14.x =====

sudo service nagios stop

 

===== Ubuntu 15.x / 16.x / 17.x / 18.x =====

sudo systemctl stop nagios.service

 

Downloading the Source

cd /tmp
sudo rm -rf nagioscore*
wget -O nagioscore.tar.gz https://github.com/NagiosEnterprises/nagioscore/archive/nagios-4.4.1.tar.gz
tar xzf nagioscore.tar.gz

 

Compile

cd /tmp/nagioscore-nagios-4.4.1/
sudo ./configure --with-httpd-conf=/etc/apache2/sites-enabled
sudo make all

 

Install Binaries

This step installs the binary files, CGIs, and HTML files.

sudo make install

 

Install Service / Daemon

This installs the service or daemon files. While these will already exist they do get updated occasionally and hence need replacing.

sudo make install-daemoninit

 

Update nagios.cfg

If you are upgrading from Nagios Core 4.3.2 and earlier you will need to update the nagios.cfg file to point to /var/run/nagios.lock using the following command:

sudo sh -c "sed -i 's/^lock_file=.*/lock_file=\/var\/run\/nagios.lock/g' /usr/local/nagios/etc/nagios.cfg"

More information about this is detailed in the following KB article:

Nagios Core – nagios.lock Changes In 4.3.3 Onwards

 

Start Service / Daemon

This command starts Nagios Core.

===== Ubuntu 14.x =====

sudo service nagios start

 

===== Ubuntu 15.x / 16.x / 17.x / 18.x =====

sudo systemctl start nagios.service

 

Confirm Nagios Is Running

You can confirm that the nagios service is now running with the following command:

===== Ubuntu 14.x =====

sudo service nagios status

 

===== Ubuntu 15.x / 16.x / 17.x / 18.x =====

sudo systemctl status nagios.service

 

Confirm Nagios Version

You can confirm the nagios version being used with the following command:

sudo /usr/local/nagios/bin/nagios -V

 

This will output something like:

Nagios Core 4.4.1